CVE-2019-25569

RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attackers can craft a malicious input string with 268 bytes of padding followed by SEH overwrite values and paste it into the Port field to cause denial of service.

CVSS v3 6.2 MEDIUM

6.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://realterm.sourceforge.io/	Product
https://sourceforge.net/projects/realterm/files/	Product
https://www.exploit-db.com/exploits/46391	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/realterm-serial-terminal-seh-overflow-crash	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:crun:realterm:2.0.0.70:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-21 13:16

Updated : 2026-03-24 20:43

NVD link : CVE-2019-25569

Mitre link : CVE-2019-25569

CVE.ORG link : CVE-2019-25569

JSON object : View

Products Affected

crun

realterm

CWE

CWE-787

Out-of-bounds Write

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